answer all three of the questions below.

1. write an equivalent expression to 2 + 3 + 5 + 6 by combining like terms.

2. find the sum of (8a – 2b - 4) and (3b − 5).

3.write the expression in standard form: 4(2a) + 7(−4b) + (3 ∙ c ∙ 5).

a)

b)

c)

Step-by-step explanation:

We are given the following in the question:

1. Equivalent expression

Since all the terms are like terms, we can write,

2. Sum of given expression

3. Standard form of the expression

which is the required standard form of the given expression.

a=r

d=q

c=p

b=s

hope this !

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation: